About

Gender

Male


Location

Anderson, SC


About Me:

Certifiable hobby nut regarding electronics, flying things, rolling things, and driving things. ARRL (KB4FEM), SARA (Amateur Radio Astronomy), BSEET (SC State 2010), SLSTP (1994), AMA (79169). I am a national support specialist for MRI systems - 39 years experience.


Please tell us a bit about your UAV interest

I am interested in amateur science applications of micro-aviation and the educational inspiration that interactive technology can provide to school kids.


Hometown:

Anderson, SC


Activity Feed

R. D. Starwalt replied to Monroe King's discussion Progress on the Harp Fabricator in DIYDrones - CNC Project
"Nice!
What did the tool handling end finally look like? 
(I suspect you will be posting that soon enough)
-=Doug"
Sep 29, 2017
R. D. Starwalt replied to Monroe King's discussion Progress on the Harp Fabricator in DIYDrones - CNC Project
"Great to see more progress! I 
Is it just me or have we (maker community in general) seen the peak of the "Build your own CNC" movement/trend?
Or has it just been shifted over to the "Buy/Assemble your own 3D Printer" movement/trend?
Just wondering…"
Jul 3, 2017
R. D. Starwalt replied to Monroe King's discussion Progress on the Harp Fabricator in DIYDrones - CNC Project
"Looking forward to seeing it!
My Momus has progressed also, but working for a living and the Gotha project has taken much spare time.
-=Doug"
Jun 17, 2017
R. D. Starwalt replied to Frank Al's discussion Balancing propellors and motors
"There is a commercial solution from Dynex Hobby in Oz.
The Impulse has a support thread on RC Groups. References to Vortex are for the older product.
It is not a home grown solution, but it is current and up to date...unlike this original post.
EDF…"
Apr 4, 2017
R. D. Starwalt replied to Monroe King's discussion Progress on the Harp Fabricator in DIYDrones - CNC Project
"The Bosch routers are gorillas and pull some serious amps on 120vac.
Are they adaptable to the popular speed controller SuperPID? I suspect they are.
I think that one really needs to define the scope of what the tool will cut and how accurate it…"
Jan 23, 2017
R. D. Starwalt replied to Monroe King's discussion Progress on the Harp Fabricator in DIYDrones - CNC Project
"Gary, Yes, those are two other options, I think, and I do have the clamp patterns in my plans set for a Bosch.
It is a stock Momus 2.1 as seen at this site http://www.momuscnc.com . There is an active, mostly, group for the design at CNC Zone.…"
Jan 20, 2017
R. D. Starwalt replied to Monroe King's discussion Progress on the Harp Fabricator in DIYDrones - CNC Project
"Excellent Monroe! Tell me about that spindle please.
I found out about a week ago that the company that carried a high precision collet for my Rigid router ended support/production so... I have to decide where to go next for the spindle -- start…"
Jan 20, 2017
R. D. Starwalt replied to Monroe King's discussion Progress on the Harp Fabricator in DIYDrones - CNC Project
"I've got several progress pics, but the Momus has been built and modified by so many, the pics are not special.
The website pretty much tells the story. http://www.momuscnc.com/
I will probably put a post up here once it is reassembled and I start…"
Nov 13, 2016
R. D. Starwalt replied to Monroe King's discussion Progress on the Harp Fabricator in DIYDrones - CNC Project
"Will the holes in the 'U' part be used for attachments or are they for 'cool' factor?
I doubt they would take much weight off the total system.
Looking great Monroe!
My Momus is also moving along slowly, but the outside of base and sound hood are…"
Nov 11, 2016
R. D. Starwalt commented on Julian's blog post 3DR's Rise and Fall
"I agree with John Birkeland.
The DIY market would eventually plateau, but to abandon the roots of an entire, albeit small, market seemed shortsighted (and now prophetic).
VC$ = RISK ---> crash & burn.
Perhaps the nearly invisible Jordi Munoz could…"
Oct 7, 2016
R. D. Starwalt replied to Monroe King's discussion Progress on the Harp Fabricator in DIYDrones - CNC Project
"Wow Monroe! You are going all the way on this one.
-=Doug"
Aug 27, 2016
R. D. Starwalt replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"Good question. I seem to remember seeing the file listed after the 'mystery module' was revealed. Where is it now?
With the 'new' technical forum running, it may be cross linked over there somewhere. It may have been linked somewhere in this thread…"
Aug 20, 2016
R. D. Starwalt replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"I checked my operational Power Module and if you are referring to the large yellow SMD cap, the numbers on mine are '107 25 310'.
I do not think I have a schematic of the PM. You should be able to find one somewhere on the net.

-=Doug"
Jul 4, 2016
R. D. Starwalt commented on Hugues's blog post Easter chickens could care less about Hobbyking's carbon fiber tubes...
"I love it Hugues... you are using plywood!
When 3D printers are being sold in yard sales for $25, hobbyists will still be using plywood.
-=Doug"
Mar 29, 2016
R. D. Starwalt replied to Donovan Silver's discussion Beginner drone options?
"Sounds like you are really interested in a flying camera.
The videography aspect is one part, keeping a machine in the air is another part.
Do you have any building experience or any RC aircraft experience? If none, you should locate local…"
Jan 26, 2016
R. D. Starwalt commented on Chris Anderson's blog post Trebuchet drone launcher
"Don't worry about the vehicle, it is a company car. :)
I hear (through unofficial channels) that the next version will be based on wood/coal fired steam with the option for fossil fuel upgrades.
Their 5 year development cycle eventually has as its…"
Jan 25, 2016
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